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Thresholds of Abnormality Perception in Facial Esthetics among Laypersons and Dental Professionals: Profile Esthetics

机译:拉德斯逊和牙科专业人士面部美学对面部美学异常感知的阈值:概况美学

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Aim. To find thresholds at which laypersons and dental professionals from Jordanian population perceive abnormalities in sagittal positioning of upper and lower jaws as a major determinant to facial profile esthetics. Materials and Methods. Using photo editing software, a baseline profile image of a young male was manipulated on a 2?mm incremental basis to move each of the upper and lower jaws backward and forward relative to true vertical line (TVL) at which four variables of maxillary and mandibular retrusion and protrusion were researched. A total of 120 participants divided equally into four groups of laypersons, general dental practitioners (GDPs), orthodontists, and oral and maxillofacial surgeons (OMFSs) rated the images using an analog scale of 100?mm long. The image that showed the first statistical difference compared to the baseline was considered as a threshold of abnormality. Results. Laypersons, GDPs, and OMFSs perceived the abnormality in the maxillary retrusion at ?5?mm to TVL, while orthodontists defined that at ?3?mm. All dental professionals perceived the abnormality in the maxillary protrusion at +1?mm to TVL while the layperson group at +3?mm. A threshold of ?7?mm mandibular retrusion to TVL was abnormally perceived by all groups. All dental professionals realized the abnormality in the mandibular protrusion at 0?mm to TVL while the laypersons at +2?mm. Conclusion. These thresholds regarding profile esthetics may contribute to the process of establishing proper orthodontic treatment planning that suits the highest facial esthetic standards.
机译:目标。寻找从约旦人群的守卫和牙科专业人员感知上下颌骨的射击定位异常作为面部型材美学的主要决定因素。材料和方法。使用照片编辑软件,在2毫米的增量基础上操纵一只幼小雄性的基线轮廓图像,以向后移动每个上颌和下颌,相对于真正的垂直线(TVL),在此颌骨和下颌的四个变量研究了撤回和突出。共有120名参与者均等分为四组劳务,一般牙科医生(GDPS),矫正者和口腔和颌面外科医生(OMFSS)使用100Ωmm的模拟等级额定图像。显示与基线相比的第一个统计差异的图像被认为是异常的阈值。结果。 PATPERSONS,GDP和OMFSSS在TVL的颌下撤回中感知异常,而矫正者定义在?3?mm。所有牙科专业人员都在+1Ωmm的上颌突起中的异常感知到TVL,而Layperson组在+3?mm处。所有群体异常察觉到TV1的阈值?7?MM下颌撤回对TVL异常察觉。所有牙科专业人员都在悬崖突起的异常在0?mm到TVL,而在+2毫米处的拉链时。结论。关于概况美学的这些阈值可能有助于建立适当的正畸治疗计划,该计划适合最高的面部美学标准。

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